the room is super clean, comfortable, and tastefully decorated. guang and his family are all very nice and hospitable while allowing plenty of space and privacy. guang's mom especially was lovely to chat with (she speaks some mandarin) and made a wonderful sampling of classic thai dishes over the course of my weeklong stay.
as others have noted, the room is on the fourth floor with no elevator so be aware of that if you have mobility concerns. for me, it was no problem especially as guang and his brother helped me with my bags (thank you!).